Grade 3 Science Worksheets
309 worksheets
Speed Comparison Worksheet | Ontario Grade 3 Science Practice PDF
Learning Objectives
- Understand how to compare the motion of objects based on distance and time.
- Distinguish between steady-speed motion and changing-speed motion using visual and numerical summaries.
- Use ratios and relative language to express which object is faster.
$2.00
Predictive Reasoning Worksheet for Grade 3 Science | Ontario Standards
Learning Objectives
- Understand how increasing influences affect outcomes.
- Recognize how surface inclines alter the speed of objects.
- Predict effects when multiple influences are applied simultaneously.
$2.00
Measuring Motion Grade 3 Science Worksheet | Ontario Standards
Learning Objectives
- Understand how distance and time are used to describe motion.
- Learn the importance of using consistent units like metres and seconds.
- Compare different objects’ speeds using basic measurements.
$2.00
Inclined Motion Science Worksheet | Ontario Grade 3 | Classroom Practice
Learning Objectives
- Understand how a sloped surface affects an object's tendency to move.
- Identify how slope steepness influences speed of sliding or rolling objects.
- Recognize the difference in motion on gentle versus steep inclines.
$2.00
Friction Effects Grade 3 Science Worksheet | Ontario Standards
Learning Objectives
- Explain what resistive forces are and how they oppose motion across surfaces.
- Describe how surface texture and material pairings influence ease of movement.
- Identify real-world examples showing the effects of different surfaces on friction.
$2.00
Forces Defined Grade 3 Science Worksheet | Ontario Standards Practice
Learning Objectives
- Understand that force is a push or pull that can change an object's speed or direction.
- Identify real-life examples of forces such as pushing a toy car or opening a door.
- Distinguish between contact and non-contact forces in simple terms.
$2.00
Combining Forces Grade 3 Science Worksheet | Ontario Standards
Learning Objectives
- Understand how multiple forces can combine to produce a net effect on an object.
- Identify scenarios where forces add, oppose, or dominate each other.
- Apply cause-and-effect reasoning to determine the result of combined forces.
$2.00
Grade 3 Science Worksheet on Stewardship Practices | Ontario Standards
Learning Objectives
- Understand conservation practices that help sustain soil health and fertility.
- Identify urban and rural measures to protect groundwater and reduce contamination.
- Recognize the role of vegetation and land management in conservation efforts.
$2.00
Grade 3 Science Load Path Analysis Worksheet and Answer Key PDF
Learning Objectives
- Understand how forces travel through structural systems from points of application to supports.
- Identify how trusses, beams, and columns distribute forces such as axial loads, bending moments, and shear.
- Explain the importance of clear load paths for maintaining stability under different conditions.
$2.00
Grade 3 Science Worksheet on Structural Forms | Ontario Standards
Learning Objectives
- Identify common structural forms such as arches, beams, and frames.
- Understand how shape, span, and connection type affect strength and stability.
- Compare the properties of compression and bending in simple structural examples.
$2.00
Seed Dispersal Strategies Worksheet | Ontario Grade 3 Science Printable PDF
Learning Objectives
- Describe various methods of seed dispersal such as wind, water, animals, and ballistic mechanisms.
- Explain the ecological significance of seed dispersal patterns for plant populations.
- Characterize how seed morphology and dispersal timing evolve to improve plant survival and spreading.
$2.00
Environmental Factors Grade 3 Science Worksheet | Ontario Standards
Learning Objectives
- Understand how soil, light, water, temperature, and nutrients affect plant growth.
- Identify human practices like crop rotation and irrigation that influence plant development.
- Explain how environmental variables impact germination, growth rate, and survival of plants.
$2.00
Grade 3 Science Worksheet on Flower Function | Ontario Standards
Learning Objectives
- Identify the main parts of a flower and their roles in reproduction.
- Explain how pollen is produced and received for fertilization.
- Differentiate between wind pollination and animal pollination with examples.
$2.00
Stages of Seed Germination Worksheet | Grade 3 Science | Ontario
Learning Objectives
- Describe the major stages involved in seed germination, including imbibition, radicle emergence, and seedling development.
- Explain the role of seed reserves and how they support early plant growth.
- Identify environmental requirements such as moisture, temperature, and oxygen necessary for successful germination.
$2.00
Diversity of Life Cycles Grade 3 Worksheet | Ontario Science Standards
Learning Objectives
- Compare different life cycle patterns among plants such as annuals, biennials, perennials, and woody plants.
- Describe strategies like seed banking and seasonal cues that influence plant development and survival.
- Explain how environmental factors and human land use affect reproductive timing and plant population persistence.
$2.00
Forces on Structures Worksheet for Grade 3 Science Ontario
Learning Objectives
- Understand different types of loads acting on structures such as beams, columns, and arches.
- Identify internal reactions like tension, compression, bending, and shear in simple structures.
- Learn how external forces like wind pressure, snow loads, and weight affect structural stability.
$2.00
Human Impacts on Soil Grade 3 Science Worksheet | Ontario Standards
Learning Objectives
- Understand how human activities affect soil quality and structure.
- Identify ways to conserve soil health and reduce environmental damage.
- Recognize the connection between soil quality, water, and ecosystems.
$2.00
Design Principles Worksheet for Grade 3 Science | Ontario Standards
Learning Objectives
- Understand the key concepts of simple structure design, including strength and stability.
- Identify common failure modes and ways to prevent them.
- Evaluate design choices based on load paths, support positions, and material properties.
$2.00
Formation Processes Worksheet | Science | Grade 3 | Ontario Standards
Learning Objectives
- Understand how soil forms through weathering, deposition, and organic matter accumulation.
- Identify the roles of organisms such as earthworms, fungi, and microbes in soil formation.
- Explain the influence of climate, slope, and time on soil development.
$2.00
Root Adaptations Science Worksheet for Grade 3 | Ontario Standards
Learning Objectives
- Describe different root structures such as fibrous and taproot systems and their functions.
- Explain how root hairs aid in water and nutrient absorption.
- Identify special root types like storage roots and aerial roots and their adaptations.
$2.00
Plant Parts Science Worksheet Grade 3 | Ontario Standard Practice
Learning Objectives
- Identify the main parts of a plant: roots, stems, leaves, and flowers.
- Describe the functions of roots, stems, leaves, and flowers in vascular plants.
- Relate plant parts to their roles in growth, resource transfer, and reproduction.
$2.00
About Grade 3 Science Worksheets
Browse 309 printable Grade 3 Science worksheets — ready-to-print PDFs with answer keys where available.
Each resource here is built by an independent educator and reviewed for quality. Worksheets print straight from PDF and suit classroom use, homework, or extra practice; most come with answer keys, and you can preview before purchasing.